AETHER-2796 make application.endpoint.port-start not mandatory

Change-Id: Ic443bc7c00f6e73623c53ab1c7eefc4d4513a728
diff --git a/sdcore-adapter-v4/Chart.yaml b/sdcore-adapter-v4/Chart.yaml
index 14cbc0e..763f67f 100644
--- a/sdcore-adapter-v4/Chart.yaml
+++ b/sdcore-adapter-v4/Chart.yaml
@@ -6,7 +6,7 @@
 name: sdcore-adapter-v4
 kubeVersion: ">=1.17.0"
 type: application
-version: 4.0.15
+version: 4.0.16
 appVersion: v4.0.0
 description: Aether SD-Core Adapter
 keywords: